Clipper



H. HILL ET AL Dec. 21, 193.7..v

INVENT%RS HERMAN/v zu. k Bx//LL/A/v H. FoxALz.

CLIPPER Filed Jan. 2, 1935 ATTORNEY Patentes Dec. 21, 1937 PATENT oFFlcECLIPPER Hermann Hill and William H. Foxall', Brighton,

N. Y., assignors to Hillfox Manufacturing Corporation, Rochester, N. Y.

Application January 2, 1935, Serial No. 129k 'I Claims.

This invention relates to hair clippers and has for its object toprovide a novel form of clippers which is especially adapted for .use inclosely cutting superfluous hair of the body.

Another object of this invention is to provide the clippers with a novelform of cutting blade with which the hair can be emciently cut on ilatas well as convexly and concavely curved surfaces of the body.

A further object of this invention is to provide the clippers with anovel operating mechanism.

All these and other objects of this invention will become more readilyapparent from the detailed description thereof which follows, referencebeing had to the accompanying drawing in which f Figure 1 is asideelevation of the novel clippers.

Figure 2 is a longitudinal sectional view of the clippers.-

, Figure 3 is an enlarged vertical sectional view of the head of theclippers. the section being taken on the line Sat-3a: of Figure 2.

Figure 4 is a horizontal sectional view of the head of the clippers, thesection being taken on the line MIJ-4a: of Figure 3.

Figure 5 is a horizontal sectional view of the clippers taken on theline Erf-5a: of Figure 3.

- In the several ilgures of the drawing like reference numerals indicatelike parts. v

The novel form of clippers for cutting the superfluous hair of the bodyforming the subject matter of our present invention makes these clippersespecially adapted for use in closely clipping the hair in concavedportions of the body such as, for example, in the arm pits although theclippers will clip the hair equally well on the more or less convexportions of the body.

As illustrated in the several ilgures of the drawing the clippers has anelongated preferably cylindrical hollow handle I to which is threadedthe cap 2. Thisrcap is enlarged at its junction with the handle I so asto provide an annular ridge 3 which projects beyond the outer wall ofthe handie for a purpose that will hereinafter be `described. Fromthe-outwardly projecting ridge 3 the cap tapers toward the topV toprovide a reduced outer end 4 thereon to have thencutter head form acontinuation thereof.

, The cutter head comprises the stationary circular cutter disc 5located on the outside of the clipper head and the oscillating circularcutter disc 6 located on the under side of the stationary disc. Suitableteeth 1 and 8 are provided in the periphery of these respective cutterdiscs which cooperate to closely clip the hair as it enters the openingsbetween the teeth.

` The outer stationary cutter disc is held supported on the outer end ofthe supporting rod 9, and is clamped to the shoulder I0 thereof by meansof the nut II and lock washer I2. The

supporting rod in turn is flxedly anchored in the base I3 which isclamped in place in the end of the handle I by means of the cap 2.Supported by a suitable bearing plate I4 on the base I3 and surroundingthe supporting rod 9 is the driving sleeve I5 which is osciliated tooperate the cutter disc 6. For this purpose the outer end of the drivingsleeve carries the driving disc I6 which is provided with a series ofdriving pins I1 which engage into suitable holes in the cutter disc yIito hold this disc centered thereon and fixed thereto. A spider shapedspring I8 is interposed between the driving disc I6 and the under sideof the cutter disc 6 and operates to hold the cutter disc 6 yieldinglyagainst the under side of the cutter disc 5. Suitable short lugs I9project from the driving disc and hold the spider shaped spring in apredetermined xed position on the driving disc I6 between it and thecutter disc 6.

The driving sleeve is provided near its inner endwith the driving pin 20which projects radially therefrom and carries the connecting bearing 2|.This bearing is slidabiy mounted in the `outer end of the oscillatingarm 22 so that on the oscillation thereof the bearing provides afloating connection between the arm 22 and the pin 2I and oscillates thedriving sleeve in a horizontal plane on the oscillation of the arm in avertical plane. The arm 22 forms part ofthe vyoke shaped operatingmember 23. which is mounted to oscillate on the pivot shaft 24. Movementis transmitted to the operating member thru the rocker arm 25 which isfulcrumed on the pin 26 and engages the under side of the operatingmember with its outer end. At a point intermediate its fulcrum and itspoint of engagement with the operating member, the rocker arm isprovided with a pocket 21 into which engages the end of the operatingrod 28. This rod is non- -magnetic and is mounted to slide and projectsthru the fixed armature 29 into enagement with the end of the movablecore 30 of the solenoid 3l. An expansion spring 32 acting against thelower end of the movable core yieldingly supports the movable solenoidagainst the pressure of spring arm 32A whichis mounted in the base I3and exerts a downward pressure against the operating yoke 23 and thruthe rocker arm 25 against the operating rod 28 so that the movable inthe solenoid 3|.

The solenoid is supported on the base 33 which in turn rests on theshoulder .34 within the handle I. In this way the cap 2, when threadedonto the handle I, holds the base I3 down onto the solenoid 3| and thesolenoid against the base 33 which in turn holds the base 33 against theshoulder 34 so that all of these members are firmly held together andiixedly mounted in the handle by the attachment of the cap 2 thereto. Acork or other resilient washer 35 is interposed between the base I3 andthe solenoid to take up any slight variation in the length of thesemembers and prevent too great a pressure from being exerted on any oneof them.

Suitable terminals 36 and 3'I are carried by the base 33 and areconnected to the leads of the solenoid to provide for the electricalconnection by means of asuitable extension cord 38 which enters thebottom. of the handle I thru the opening 39.

From the foregoing it will be apparent that the reciprocating motion ofthe oatingY core 30, caused by an alternating currentpassing thru thesolenoid,vreciprocates the operating rod 28 and oscillates the operatingyoke 23 and its arm 22 by means of the rocker army 25. The oscillatingmotion of the arm 22 in turn is transmitted to the driving sleeve I4-bymeans of the connecting pin 20 and its connecting head 2|, and thedriving disc I6, carried by the driving sleeve,l

causes the cutter disc 6 to oscillate on the under side of thestationary cutter disc 5 for the cutting operation.

As will be seen from an inspection of Figure 1 the annular ridge 3 ofthe cap 2 overhangs the handle I so that-when the clippers is laid onthe table or other flat surface, it is supported in an inclined positionin order to keep the cutter discs from coming in contact with thesupporting surface and being damaged thereby. In Figure 1 the dottedline marked 40 indicates the line of support for the clippers when"placed on a iiat supporting surface.

As will be seen from an inspection of Figure 2 the cutting teeeth 'I ofthe stationary cutter and the cutting teeth 8 of the oscillating cutterare oiset so as to have their cutting surfaces and their frictionalcontact with each other ret duced to a minimum. In this way'only theteeth of the cutters, which form but a small portion of the cuttingdisc, are in frictional contact with each other. This is an essentialfeature in this type of clippers because the power of a solenoidembodied in the handle of the clippers is necessarily limited. Reducingthe frictional contact between the cutting teethin this manner alsopermits the use of a yielding pressure which is exerted by the spring I8against the movable cutting blade and have the movable cutting bladeoscillate by the limited power generated by the solenoid.

We claim:

1. Clippers comprising a handle, a fixed supporting rod projecting fromone end of said handie, a cutter disc having cutting teeth arranged in aconvex curveon the perimeter thereof attached to said supporting rod soas to have' its teeth project substantially at right angles to thehandle, an axially movable cutter disc having correspondingly arrangedcutting teeth on the perimeter thereof surrounding said supporting rodand held yieldingly against said stationary cutter disc, a drivingsleeve mounted to oscillate core is held suspended in a iioatingposition withon said xedsupporting rod and means connecting said drivingsleeve with said axially movable cutter disc and means for oscillatingsaid driving sleeve.

2. Clippers comprising a' handle having a circular cutting head at oneend thereof concentric to the handle, a solenoid axially arranged withinsaid handle, a core mounted to reciprocate within said handle, a drivingsleeve concentric to said cutter head and adapted to operate said cutterhead and means operated by said reciprocating core to oscillate saiddriving sleeve.

3. Clippers comprising a hollow handle, a solenoid telescopicallymounted within said handle, a base telescopically mounted in said handleon top of said solenoid to hold said solenoid in place in said handle, asubstantially vertically arranged oscillating arm mounted to swing in4said base, a substantially horizontally arranged rocker arm mounted insaid base and engaging said oscillating arm, a core operated by saidsolenoid to rock said rocker arm and oscillate said swinging arm, a xedanchoring post mounted on said base and projecting axially from saidhandle, a circular cutter disc mounted on said anchoring post, a drivingsleeve mounted to oscillate on said anchoring post, a cutter discsupported on said driving sleeve to hold it concentric to said xedcutter disc and means connecting said oscillating arm with said drivingsleeve to oscillate said movable cutter disc on the operation of saidcore by said solenoid.

4. In clippers the combination of a iixed anchoring post, a cutter discmounted on said anchoring post, a driving sleeve mounted to oscillate onsaid driving post, a movable cutter disc supported by said drivingsleeve concentric to said xed cutter disc, an oscillating arm mounted toswing in a plane at right angles to the axis of rotation of said drivingsleeve, a bearing pin carried by said driving sleeve and adapted toengage said oscillating arm and means for oscillating said oscillatingarm to oscillate said driving sleeve and movable cutter disc.

5. In clippers the combination of a iixed anchoring post, a stationarycutter disc mounted on said anchoring post, a driving sleeve mounted tooscillate on said anchoring post, supporting means provided on saiddriving sleeve, a cutter disc removably mounted on y, said supportingmeans, spring means carried bysaid supporting means to yieldingly holdsaid removable cutting disc against the underside ci' said stationarycutting disc, a swinging yoke, an arm carried by said yoke and extendingto one side of said driving sleeve substantially parallel thereto, adriving pin carried by said driving sleeve and engaging said arm, arocker arm engaging said swinging yoke and means for rocking said rockerarm to swing said swinging yoke and arm and oscillate said drivingsleeve and movable cutter.

6. In clippers the combination as set forth in claim 5 in which themeans for rocking said rocker arm comprises a solenoid. a core operatedv by said solenoid, an operating member connecting said core with saidrocker arm, spring means holding said swinging yokeagainst one side ofsaid rocker arm and spring means acting on said core to hold saidoperating member against the l other side of said rocker arm. both ofthe said spring means operating to hold said core in a iioating positionwithin said solenoid.

7. In clippers, the combination of a hollow handle having an open end, asolenoid operated core mounted to reciprocate in said handle, a

supporting member located in the open end of said handle, a cap memberfor the open end of said handle adapted to hold said supporting memberin place on said handle, a pivot pin supported on said supportingmember, and projecting thru said cap member, a, driving sleeve mountedto rotate on said pivot pin, a cutter head supported on said pivot pinand operated by said driving sleeve and movement transmitting meanscarried by said supporting member operatively4

